Internal-combustion engine.



E. HOILAND.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED APR.14,,1910.

Patented June 27, 1911.

3 SHEETSSHEET 1.

E. HOILAND.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED APR. 14, 1910.

Patented June 27, 1911.

3 SHEETS-SHEET 2.

E. HOILAND. INTERNAL COMBUSTION ENGINE.

APPLIOATION FILED APR-14, 1910.

Patented June 27, 1911.

3 BHEETBSHEET 3.

EDVARD HOILANID, 0F AUCKLAND, NEW ZEALAND.

INTERNAL-COMBUSTION ENGINE.

ceases.

Specification of Letters Patent.

Patented June 27, 1911.

Application filed April 14, 1910. Serial No. 555,395.

To all whom it may concern:

Be it known that I, EDVARD HOILAND, a citizen of the Dominion of NewZealand, and residing at 11 The Strand, Auckland, in the ProvincialDistrict of Auckland, in the Dominion of New Zealand, have inventedcertain new and useful Improvements in Internal-Combustion Engines, ofwhich the following is a specification.

This invention relates to internal combustion engines and provideswithin the cylinder a sleeve to which a reciprocating and semi-rotatingmotion is imparted, whereby a series of ports in the sleeve are broughtinto correspondence with ports in the cylinder, thereby providing foradmission of combustible vapor to the sleeve and for the subsequentexhaust of the products of combustion.

The invention is carried intoeffect by means of the mechanismillustrated in the accompanying drawings wherein Figure 1, is asectional elevation, Fig. 2, a sectional plan on line A-A, Fig. 1, andFig. 3, an elevation of the engine. Figs. 4, 5, 6 and 7 are diagramsshowing the relative positions of the cylinder and sleeve ports atdifferent parts of the stroke of the engine. Fig. 8, is a sectionalelevation on line BB, Fig. 3, Fig. 9, is a perspective view of a sleeve,Fig. 10, a sectional plan on "CC, Fig. 9, Fig. 11, a sectionalperspective elevation of the cylinder partly broken away, Fig. 12, aplan of the cylinder with the head removed, Fig. 13, a diagram showingon a large scale the positions of the ports, and Fig. 14, a sideelevation ofthe engine casing.

The cylinder 1 having a water jacket 2 of ordinary construction, has anoutlet port 3 for the explosive mixture, and an exhaust 4 for the escapeof the products of combustion.

A circumferential passage way 5 surrounding the cylinder is dividedcircumferentially into two parts 6 and 7 by a zigzag partition 8 forminga series of communicating recesses 9 and 10, the inlet port 3communicating with the recesses 9, which are open at the top, and theexhaust port 1 communicating with the recesses 10 which are open at thebottom.

The cylinder has a series of ports 12 and 13 corresponding to, andcommunicating with, the recesses 9 and 10 respectively, the ports 12communicating with the recess s 9 and the inlet port 3 and the ports 13communicating WltlL the recesses 10 and the exhaust port 4.

The sleeve 15 fitting the cylinder has a series of ports 16corresponding to the ports 12 or 13, that'is to say, if the cylinder hastwelve ports as shown in the drawings, then the sleeve will have sixports. Motion is communicated to the sleeve 15 from the crank shaft 17of the engine by a pinion 18 fixed thereon, and gearing with an idlespur wheel 19 mounted upon a shaft 20 and gearing with a spur wheel 21fixed upon a valve shaft 22. A skew gear wheel 23 fixed upon the valveshaft 22 gears with a corresponding skew gear wheel 24 integral with acrank .shaft 25, the crank pin 26 whereof is pro vided with a slidableball 27 rotatable in a socket 28 having a cap 29. The gearing isarranged so that while the shaft 17 makes two revolutions, the shaft 25makes one 34. The liner 30 and the cap 35 are cut away as required topermit the skew gear wheel 23 to engage with the wheel 24, as clearlyshown in Fig. 1.

The rotation of the shaft 25 reciprocates the sleeve 15 longitudinallyin the cylinder and at the same time imparts to the sleeve asemi-rotating motion, these combined movements resulting in each part ofthe sleeve, taking an elliptical course corresponding to the ellipseshown in Fig. 13.

Referring now to the diagram shown in Figs. 4:, 5, 6, 7 and 13, a singleport 16 of the sleeve 15, and a single inlet port 12 and a singleexhaust port 13 in the cylinder are shown. The dot 40 represents thecrank of the main shaft 17 and the dot 41 represents the crank' pin 26,which both travel in the direction indicated by the arrow. In Fig. 4 thedot 40 shows the position of the crank shaft 17, and the dot 41 showsthe position of the crank pin 26, when the piston of the engine is atthe inner end of the sleeve 15 at the commencement of a cycle ofoperations. The position of the port 16 relative tothe ports 12 and 13is also shown, these positions corresponding to the positions shown inFig. 13, Where the port 16 is not open either to the port 12 or 13. InFig. 5, the piston has moved to the outer extremity of its stroke, andthe sleeve has moved inward for half its stroke and in so doing, itsport 16 has opened communication with the inlet port 12 for theintroduction into the sleeve 15 of a charge of explosive mixture. InFig. 6, the piston has again reached the inner end of the sleeve andcompressed the explosive charge, and the port 16 is also at the innerextremity of its stroke, its proper position during the firing of thecharge. The dotted band 43 in Figs. 4, 5, 6 and 7 represents a ring 43provided in a groove-formed in the head 44 of the cylinder, the saidhead passing for some distance into the sleeve 15 and forming by meansof its rings 43 and 45 a gas-tight joint therewith. and rotatable uponthe head 44. During the firing of the explos'we charge, the port 16 iscovered by the head 44, and the ring 43 and leakage of the explosivecharge through the said port and through the ports 12 and 13 is therebyprevented.

Referring now to Fig. 7, the piston has traveled to the outer extremityof its stroke and the port- 16 is open to the exhaust port 13, the cycleof operations being thus COIII- pleted.

W hat I do claim and desire to secure by Letters Patent of the UnitedStates is 1. In an internal combustion engine, a cylinder formed with anumber of alternately arranged inlet and exhaust ports, a piston, asleeve formed with a single set of ports adapted to coincide alternatelywith the inlet and exhaust ports of said cylinder and means forreciprocating and oscillatmg said sleevein said cylinder.

The sleeve 15 is slidable tion dividing the passage-way into two' partscommunicating respectively with a port for admission of an explosivecharge and a port for the exhaust of products of combustion, saidpartition forming recesses communicating by ports with the interior ofthe cylinder, means for imparting a combined reciprocating andsemi-rotating motion to the sleeve, a piston reciprocable in thecylinder, a crank shaft, a rod connecting the crank shaft to the piston,and a casing wherein the crank shaft is mounted and to which thecylinder is secured, substantially as set forth.

3. In an internal combustion engine, a cylinder, a sleeve slidable androtatable in the cylinder, a socket upon the side of the sleeve, a ballfitting the socket, a shaft having a crank pin whereon the ball isslidable and rotatable, and means for rotating the shaft, substantiallyas set forth.

4. In an internal combustion engine, a cylinder, a sleeve fitting thecylinder, a casing attached to the cylinder, a boss integral with thecasing, a liner fitting and attached to the boss, a cap fitting andfixed to the said liner, a shaft and integral skew gear wheel mounted inthe liner and cap, a crank pin projecting from the end of the shaft, aball slidable and rotatable on the crank pin, a socket upon the sleevefitting upon the said ball and means for rotating the skew wheel,substantially as set forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

EDVARD I-IOILANI).

lVitnesses:

ERNEST SMITH BALDWIN, ANNIE DOROTHY MoKENzm.

